Electric switch



ug. l0 1926.

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able und xcd contacts are in I This "further movement serves wel'I in' 'aned by the Spying '2 in engage 1 'ed Contacts 9 und 1.40 un' 510s the slew@ 21. a. i .lavable Cont-aci is fc off n. dash im 'I "very m. i: w, dangaruue mme g* "Evil by un? spaik when bv um gmc@ rf;

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commi gasjng .vewith u Mueve., a movable heave and L and and contacts located below the upper end ofthe fixed sleeve whereby the casing 'may be filled with a liquid to cover the contacts. y y

5. An electric switch having a tight casingcontaining switch contacts, a fixed sleeve extending upwardly therein, a movable sleeve surrounding the fixed sleeve an operating plun er extendin through. e fixed' sleeve and aving a tig t connection tothe movable sleeve, and a liquid filling the casing to a point above the lower end of the movable sleeve and below the upper end of the fixed .zleev wh'ereby the casing is sealed by the iqtii 6. An electric switch havi a tight casing containing switch contacts, al xed sleeve extending upwardly therein, a movable sleeve surrounding the fixed sleeve an operating plun r extendin through the fixed sleeve aving 'a ti t connection to the .movl able sleeve, and ali uid filling the casing to above the lower end of the movable sleeve and to below the upper end of the lfixed sleeve whereby the casing is sealed lby the A liquid, the liquid also covering the ,contacts y and being adapted to prevent arcing.

7. An electric switch comprising a casing, a fixed sleeve extending 'into the casin an operatingy plunger extending into the s eeve and freely movable therein, a spring surrounding the portion ofthe sleeve ad1acent the casing, a movable sleeve surrounding the fixed sleeve and bearing a inst the spring,

the inner end `of' the mova le'sleeve havingv connected to the' plunger 'a fixed contact located adjacent the movable sleeve, op-

y,/posed shoulders upon the movable sleeve, va movable contact adapted tc have a sliding movement therebetween, and a spring bear, ing against one of said shoulders and against the adjacent face of the movable contxct thus urgin the movable contact against neshoulder a Jacentthe fixed Contact.

8L An .electric switch comprisingv acasing,

' a fixed sleeve extending upwardly into'the casing, an operating plunger extending nplwardly into the sleeve and adapted'dn recipy recate freely therein, a spring surrounding the lower portion of the iixed sleeve and bear'mgagainst the casing, a' movable sleeve surroundingl the fixed sleeve and bearing upon theupperend-of the spring, the upper end of the movable sleeve having a connection with the upper endv of the plunger, fixed contacts located adjacent the lower portion of the movable sleeve, opposed shoulders upon the movable sleeve, a mov able contact having a sliding movement between said shoulders, and av springbearing against the upper shoulder and (die upper aceof the movable contact and thus yieldably7 holding the contact .againstgtbe lower shoulder.

9. An electric switch comprising a casing, a fixed sleeve extending upwardly into the casing andhaving a tight connection therewith anfoperating plu r` extending upwardly into the sleeve an ladapted to rccp` lrecite freely therein, a spring surroundin the lower lportion of the fixed sleeve an bearing agaigst the casin a movable sleeve Surrounding the fixed s eeve and bearing upon the upper end of the spring, the upper end of the movable sleeve having a tight connection with the upper end of the plunger, fixed contacts located adjacent the lower portion of the movable sleeve, opposed. shoulders upon the zrovable sleeve., a

able contact having a sliding i ivei'nent be f bearing tween said shoulders, and a sp against theupper shouldei the upper face of the movable contact time yieldably holding the Contact against the iower shoulder, the casing being seeded by a filling of oil extending to a point above the lower end of the movable sleeve and below the up er end of. the fixed sleeve. ig'ned at Ironwood, Michigan, this 29th day of November, 1920.

HERMAN F. BATES. 

